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Miscellaneous options

All output
   


tex2html_wrap_inline33790 tex2html_wrap_inline33790 Usage

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When the all  and all+  options are used with the OPTION:  command, they are used to enable or disable quickly all adjustment output options. When used with the SHOW:  command, they display all available output for the current adjustment. The pathsum  option is treated somewhat differently in that it is excluded from the list of options for these purposes.    

Belief comparison canonical quantities
 


tex2html_wrap_inline33790 tex2html_wrap_inline33790 Usage

  • BD>option  bcd  tex2html_wrap_inline33712 switch on standard belief comparison output.

  • BD>option  bcd+  tex2html_wrap_inline33712 switch on extended belief comparison output.

  • BD>option  -bcd  tex2html_wrap_inline33712 switch off the output of belief comparison directions.

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The bcd  and bcd+  options are used to control the appearance of directions as well as corresponding variance quantities for the comparison of beliefs offered by the COMPARE:  command.  

Detecting data inconsistencies
   


tex2html_wrap_inline33790 tex2html_wrap_inline33790 Usage

  • BD>option  datawarn  tex2html_wrap_inline33712 summarise data inconsistencies, if any.

  • BD>option  datawarn+  tex2html_wrap_inline33712 switch on the output of details of data inconsistencies, if any, together with linear combinations.

  • BD>option  -datawarn  tex2html_wrap_inline33712 switch off the output of details of data inconsistencies.

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The datawarn  and datawarn+  options are used to output details of data inconsistencies, if any, as they arise during adjustments. Suppose that the data quantities tex2html_wrap_inline35840 for an adjustment are observed to be tex2html_wrap_inline36242 . These data are inconsistent with the beliefs specified beforehand if, for any linear combination tex2html_wrap_inline41668 , we have tex2html_wrap_inline41670 and tex2html_wrap_inline41672 . If the datawarn+  option is switched on, both the values of tex2html_wrap_inline41668 and the linear combination tex2html_wrap_inline41676 are reported. Otherwise only the value of the discrepancy from zero is reported. Such discrepancies usually cause errors, but instead a warning can be reported if the datawarn  control is used.    

Program command lines
 


tex2html_wrap_inline33790 tex2html_wrap_inline33790 Usage

  • BD>option  echo  tex2html_wrap_inline33712 switch on the echo commands to the screen.

  • BD>option  -echo  tex2html_wrap_inline33712 switch off the echo of commands to screen.

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The echo  option can used to echo all [B/D] commands to the screen. Its main use is to keep track of the commands being obeyed during a macro. For the WINDOWS  version, it also displays the memory  available at the commencement of the current command.  

Eigenanalyses
   


tex2html_wrap_inline33790 tex2html_wrap_inline33790 Usage

  • BD>option  eig  tex2html_wrap_inline33712 enable eigenvalue output.

  • BD>option  eig+  tex2html_wrap_inline33712 enable eigenvalue and eigenvector output.

  • BD>option  -eig  tex2html_wrap_inline33712 disable eigenvalue and eigenvector output.

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The eig  and eig+  options are used to output the eigenstructure determined using an EIGEN:  command. The eigenvalues are obtained by using the option eig , and both eigenvalues and eigenvectors are obtained by using the option eig +.    

Nonnegative definite matrix corrections
 


tex2html_wrap_inline33790 tex2html_wrap_inline33790 Usage

  • BD>option  eigadd  tex2html_wrap_inline33712 enable the display of a matrix correction.

  • BD>option  -eigadd  tex2html_wrap_inline33712 disable the display of a matrix correction.

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The eigadd  option is used in conjunction with the ADJUST: , SCAN: , EIGEN:  and INVERT:  commands. It has two roles. Firstly, it determines whether diagnostic aid is displayed in the case of the detection of negative eigenvalues. For most purposes we require a matrix tex2html_wrap_inline34522 to be non-negative definite. When the eigensystem determination algorithm within [B/D] detects negative eigenvalues beyond a certain threshhold, and when this option is enabled, a matrix tex2html_wrap_inline41262 is displayed such that the matrix tex2html_wrap_inline41682 is non-negative definite.

It is the case that [B/D] needs to make judgements about the ranks of several matrices (assumed non-negative definite). The nature of the routines here is that very small eigenvalues can represent inaccurately determined eigenvalues which should equal zero. Thus, we take any eigenvalue smaller than a given threshhold to be equal to zero. The threshhold used is a small fraction of the euclidian norm of the subject matrix. The second function of the eigadd  option is to report the value of the threshhold and display all eigenvalues smaller than it in the case where [B/D] judges the rank of the matrix to be smaller than its dimension.  

Influence diagrams
 


tex2html_wrap_inline33790 tex2html_wrap_inline33790 Usage

  • BD>option  influence  tex2html_wrap_inline33712 enable interactive output of influence diagrams during adjustments.

  • BD>option  -influence  tex2html_wrap_inline33712 disable interactive output of influence diagrams during adjustments.

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The influence  option permits the interactive construction of influence diagrams during adjustments being performed with the ADJUST:  command.

Note that the overwrite  control can be used to superimpose successive influence diagrams from a sequence of adjustments, and the overshade  control can then be used to control the type of shading resulting from partial adjustments.  

Partial correlation diagrams
 


tex2html_wrap_inline33790 tex2html_wrap_inline33790 Usage

  • BD>option  pcdiag  tex2html_wrap_inline33712 enable interactive output of partial correlation diagrams.

  • BD>option  -pcdiag  tex2html_wrap_inline33712 disable interactive output of partial correlation diagrams.

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The pcdiag  option is used only as a switch to determine whether or not the partial correlation diagram is produced when the PCDIAG:  command is issued.  

Correlations for data summaries
 


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  • BD>option  scorr  tex2html_wrap_inline33712 enable output of the scorrelation matrix.

  • BD>option  -scorr  tex2html_wrap_inline33712 disable output of the correlation matrix.

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The scorr  option is used as a switch to determine whether a correlation matrix is produced for the data carriers supplied as the arguments to a SUMMARY:  command. See also the scov  option, which yields sample covariances.  

Covariances for data summaries
 


tex2html_wrap_inline33790 tex2html_wrap_inline33790 Usage

  • BD>option  scov  tex2html_wrap_inline33712 enable output of the covariance matrix.

  • BD>option  -scov  tex2html_wrap_inline33712 disable output of the covariance matrix.

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The scov  option is used as a switch to determine whether a covariance matrix is produced for the data carriers supplied as the arguments to a SUMMARY:  command. See also the scorr  option, which yields sample correlations.  

Warning messages
 


tex2html_wrap_inline33790 tex2html_wrap_inline33790 Usage

  • BD>option  warn  tex2html_wrap_inline33712 switches on warning messages.

  • BD>option  -warn  tex2html_wrap_inline33712 switches off warning messages.

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The warn  option is used to switch on or off the display of warning messages. Error messages are always displayed.  


next up previous contents index
Next: Controls Up: Output options Previous: Plotting options

David Wooff
Wed Oct 21 15:14:31 BST 1998